发明名称 |
Vapor-Grown and Graphitized Carbon Fibers, Process for Preparing Same, Molded Members Thereof, and Composite Members Thereof |
摘要 |
There are disclosed graphitized vapor-grown carbon fibers capable of forming composite materials having the graphitized vapor-grown carbon fibers contained at a high packing density and forming molded members consisting substantially solely of the graphitized vapor-grown carbon fibers, a process for the preparation of the graphitized vapor-grown carbon fibers, the molded member, and the composite member. The graphitized vapor-grown carbon fibers have a mean fiber diameter of 5 mu m or smaller, a mean fiber length of 90 mu m or shorter, a mean aspect ratio of from 1 to 18, and a electronic spin density of 8 x 10<1><8> spins/g or less, when measured by the electron spin resonance absorption method. Such graphitized vapor-grown carbon fibers are prepared by graphitizing the vapor-grown carbon fibers at 2,000 DEG C or higher and then fracturing them by applying a high impact thereto. The molded members can be formed, for example, by hydrostatic pressure-isotropic pressure molding techniques. The composite members can be prepared by compounding the vapor-grown and graphitized carbon fibers with the matrix. |
申请公布号 |
CA2099808(A1) |
申请公布日期 |
1994.01.07 |
申请号 |
CA19932099808 |
申请日期 |
1993.07.05 |
申请人 |
HARADA, MINORU;NIIYAMA, MASANORI |
发明人 |
HARADA, MINORU;NIIYAMA, MASANORI |
分类号 |
C04B14/38;C04B30/02;D01F9/127;D01F11/12;H01M4/58;H01M4/96 |
主分类号 |
C04B14/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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